Work support



Feb. 27,1945. N. M. MARslLlus woRK SUPPORT Filed sept. 27,' 194s- 2 Sheets-Sheet l NEWMAN M. MARsluus Feb. 27, 1945. N, M MAR`S ,US 2,370,366

WORK SUPPORT Filed Sept.. 27, 1943 2 Sheets-Sheet 2 NEWMAN M. MARsmus Syvum/Wo@ Patented Feb. 27, 1945 WORK SUPPORT Newman M. Marslius, Trumbull, Conn.

Application September 27, 1943, Serial No. 503,956

1 Claim.

This invention relates to new and useful improvements in work supports and has particular relation to a support adapted for mounting on a machine bed or the like to support work at any desired angle for engagement by a tool or tools of the machine.

The objects and advantages of the invention will become apparent from a consideration of the following detailed description taken in connection with the accompanying drawings wherein a satisfactory embodiment of the invention is shown. However, it is to be understood that the invention is not limited to the details disclosed but includes all such variations and modications as fall within the spirit of the invention and the scope of the appended claim.

In the drawings:

Fig. 1 is a top plan view of the work holder of the invention;

Fig. 2 is a side elevational View of such work holder;

'Fig 3 is a front elevational view thereof on a larger scale; and

Fig. 4 is a perspective view, of the scale of Fig. 3, of the means employed for adjusting the work holder part of the present support to vary the angle at which the work is supported.

Referring in detail to the drawings the work holder oi the invention comprises a base generally designated I Il and a head generally designated II and mounted on said base. Base I includes a relatively thick body portion I2 having a pair of bifurcated extensions I3 and I4 for the receptions of bolts or other securing means by which the base may be secured in position on a machine bed or other surface. The body of the base Il) may be tapered as shown and such body has an upper side surface I5 and is shown as graduated about the edge of such surface at I6.

Opening through the upper side surface I5 of the base is an annular slot I'l. Inwardly of surface I5. the slot is laterally enlarged at I8 (Fig. 2) whereby the slot while annular is of inverted T-shape in transverse section. A pair of bolts I9 and 20 have their heads 2| disposed in the inner laterally enlarged portion I8 of the slot and the shanks of these bolts extend outwardly through slot I1 and in cooperation with nuts, as will appear, serve to secure the head II in adjusted positions on the base I0. A short stud 22 extends outwardly from the center of the upper side of base I0. j

Head II comprises an inner part 23 and an outer part 24. Part 24 is provided with various T-slots 25 opening through its outer surface for use in mounting work on this part and part 24 therefore comprises the'work holder portion of the present work support. Each of the parts 23 and 24 is shown as somewhat plate-like and the underside of part 23 is disposed on the upper or outer side I5 of the base and is provided with a central opening 26 receiving the stud 22 of the base. Additionally, in its sides the inner part 23 is provided with bifurcations or notches 21 for the reception of the Shanks of the bolts I9 and 20, above mentioned.

On the bolts I9 and 20 at the upper side of part 23 are nuts 28. `Clearly on tightening of these nuts the part 23 is clamped against the upper side I5 of the base Ill and on loosening of these nuts the inner head part 23 may be turned on the base for angular adjustment of the head II in a plane parallel with that of side I5 of the base. Stud 22 and opening 26 serve as centering means for the described adjustments of the head on the base. Following any adjustment the nuts 28 are tightened to secure the part 23 and thus the entire head II in the desired acljusted relation to the base.

Toward one end part 23 is provided with a raised ear-like portion 29 through which passes a pivot pin 30 having mounted on its end portions the ear-like portions 3l on the underside and adjacent the rear edge of the outer or upper part 24. In this way the outer part 24 is pivotally mounted at one of its ends on the inner part 23 for pivotal movement and adjustment relative to such inner part. Improved means are provided for shifting or adjusting the part 24 -about or with the pivot 30 and for securing such part in any chosen adjusted position.

The mentioned meansiis in the form of a pair of upper and lower or inner and outer toggle joints 32 and 33 respectively. This means, shown best inFig. 4, is adapted for manual operation and the toggle joints are collapsed and straightened by turning of a feed screw 34 oppositely threaded on its respective end portions. Toggle joint 32 comprises a pair of links 35 and 36 whose inner portions are pivotally connected by a rod 31 whereby to form a knee. Toggle joint 33 is similarly formed and comprises a pair of links 38 and 39 connected at their inner ends by a rod 40 whereby to forma knee.

A pair of spaced blocks 4I and 42 have the feed screw 34 threaded therethrough and at the forward side of block 4I the end 43 of the feed screw is squared or otherwise shapedfor engagement by a wrench or,other tool to be used for turning the screw. At their forward ends the links 35 and 38 are pivotally connected to the block 4| as by studs 44 having nuts 45 thereon for tightening against the outer sides of the links. At their rear ends the links 36 and 39 are pivotally connected with the block 42 by studs 46.

With the described construction see particularly Fig. 4) it will be understoodthat on turning of screw 34 in one direction the blocks 4I and 42 will be moved toward one another and that on turning of the screw in the opposite direction said blocks will be :moved from r4one another. Thus as the screw lis 'turned in the first direction the toggle joints 32 and 33 are moved toward expanded condition and as the screw is turned in the opposite direction the said joints are moved in a direction to straighten them. The 'movement of the joints toward expanded icondition involves the movement of their knees from one another.

In the present work support the described-.toggle means is arranged to enter between the inner and outer parts 423 and 24 'such parts being Lcen trally lspaced 'even when in fparalle'l lrelation as shown in the drawings. 'The .pivot rods 131 and 32 and 33 pivotally'connectsaidlkneeslwith lthe outer and inner parts 123 Avand 24 frespectively. Thus it -wll be clear that any fmovemeritfof Lthe knees ofthe toggle jointstoward-andafrom one anothermust result in s'imilarlmovementlof 'the ycuter part -24 relativeto thednner -part 23.

A jam nut 41 is threadefonto'thefeed :screw 34 `at the forward iside of the fblo'ck '4|. -On loosening of this nutfand the nuts 45 Sthetoggle means disclosed isadapted to be operated-toralse 4and lower the'part 24 relativeftofthe 'part23iby fmovement of thefirstfnamedpart on-'thefpivot 3U.

thebed ofa'milling-maclilne'or thelikefand on loosening of the lnuts'28 the lhead 'ffl fmaybe "given fangular adjustment relative to the "base and inthe plane of the-outer or-'upper='side'ff5ff the latter. This is 'to 'dispo'se -iany 'workfthe outer part or holder 24? in the desired-'irlationf'to 'the path of movement of -a' cutter, 'or inlth'e' desired relation to a cutter, if the present support is mounted on a machine part which is to have movement relative to a cutter.

In addition to the above the cuter head part 24, or the work holder part 24 of the present support, maybe angularly adjusted in a plane at right angles to that in which the head I I may be adjusted relative to the base l0. Further adjustment of part 24 with or about the pivot pin 30 may be made with the utmost precision. Relatively ylarge 4or relatively small adjustments maybe made. `When an adjustment `has been made, either of the head Il on the base or of the ;part 24 on the part 23, the parts are thereafter locked in adjusted positions by tightening of the nuts provided for that purpose. Laterally pro- Ajeotingpins.48 are provided for use with a sinebar when making a very accurate adjustment of lth'elhead part 24 on the head part 23.

.Having thus set forth the nature of my invention, what I claim is:

Un la lwork support a `head comprising vinner an'd vlouter parts of which the outer part is adapted ito r'have work .mounted thereon, Vmeans pivotally mounting'said Iouter part on\said inner ypart Afor :angular adjustment relative ithereto, a pair of toggle joints entering between 'saidparts and lcomprising a vpair f of `rods mounted one on eachof said'parts anddisposed parallel'to said pivoting fmeans `and `to 'one :another, ltwo outer 'links yreach .pivotally connected lat one lend lto :.thelrod mounntedion `theouter part, -said links laterally spaced and 'connectedwithlspaeed portions ofsaid lrod, vtwo innerlinks each pivotally lconnected at'one endtothe-rod mounted on'the :inner `partpsaid links laterally spaced and` connected withspacedportions of said rod,'a'bar extending between and at right angles ftolsald .rods and oppositely threaded .on its :respective end portions, a nut on each of said threaded end portions, :and means pivotally connecting the other ends of the respective outer two an'd inner .twodinks with 'opposite sides-of saidnuts whereby on turning of the bar the `nuts are moved :towardand from :one lanother to expand and :straighten :said 'toggle v,joints and thereby .adjust thei'outer Lheadcpart: on ysaid pivotal lmounting relative :to i the inner headzpart :and= whereby thethrustzagainst ythe outer 'fhead part ns1-aver -the .lengthi of therod mounted f thereon.

NEWMAN M. EMARSILIUS. 

